As someone who’s only experience with Sony is via emulation:
PS2 > PS1 > PSP > PS3 > PS4 > PS Vita > PS5
PS5 doesn’t have anything of note in its library, it rides off the coattails of the PS4 so much that they should’ve called it the PS4 II. The console also physically looks corporate and lame. All the swag of its fallen brethren, gone. I hope all of its exclusives end up on PC and PS6 so I can forget this garbage console existed.
PS Vita is second to last cause let’s be honest here, there are barely any notable games here either. Most of them are either ports or untranslated. Even after I physically looked up the library of this system, I can say for sure that there are only like 8 games I’d actually want to play on it (Muramasa Rebirth, Tales of Innocence R, Gravity Rush, Tales of Hearts R, Oreshika: Tainted Bloodlines, Grand Kingdom, TxK, mayyyybe Luminous Arc Infinity) and the rest are ports or on a better console. It’s dire and the only real saving grace here is how easy it is to homebrew.
PS4 is above it solely because it has more options, but imma be honest, I know next to nothing about this console
PS3 also has a lot of interesting exclusives and really feels like the end of an era with some of the titles.
Then of course you have PSP, PS1, PS2 and there’s nothing negative to say about any of them